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Optimization of pretreatment of jatropha oil with high free fatty acids for bio...
Suwito, Supriyono; Dragone, Giuliano; Sulistyo, Hary; Murachman, Bardi; Purwono, Suryo; Teixeira, J. A.A central composite rotatable design and response surface methodology were used in order to investigate the individual and combined effects of the ethanol-to-oil ratio, H2SO4 concentration, temperature and time of reaction on the reduction of free fatty acid (FFA) in jatropha oil. A quadratic polynomial model relating the reaction variables with FFA reduction was developed, presenting a good coefficient of dete...
Data: 2012
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Origem: RepositóriUM - Universidade do Minho
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